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MAINTENANCE
Safety Precautions
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output terminals or internal wiring.
• When inching with gun trigger, electrode and
drive mechanism are "hot" to work and
ground and could remain energized several
seconds after the gun trigger is released.
• Turn OFF input power at welding power
source before installation or changing
drive roll and/or guide tubes.
• Welding power source must be connected
to system ground per the National
Electrical Code or any applicable local
codes.
• Only qualified personnel should
perform maintenance work.
Observe all additional Safety Guidelines detailed
throughout this manual.
Routine Maintenance
Drive Rolls and Guide Tubes
After feeding every coil of wire, inspect the drive roll
section. Clean it as necessary. The drive rolls and
Inner Wire Guides are stamped with the wire sizes
they will feed. If a wire size other than that stamped
on the roll(s) is to be used, the roll(s) and Inner Wire
Guides must be changed.
All drive rolls have two identical grooves. The rolls
may be flipped over to use the other groove.
See "Procedure to Install Drive Rolls and Wire
Guides" in the INSTALLATION section for roll chang-
ing instructions.
Wire Reel Mounting - Readi-Reels and
10 through 44lb (4.5-14kg) Spools
No routine maintenance required.
MAINTENANCE
Avoiding Wire Feeding Problems
Wire feeding problems can be avoided by observing
the following gun handling and feeder set up proce-
dures:
a) Do not kink or pull cable around sharp corners.
b) Keep the electrode cable as straight as possible
when welding or loading electrode through cable.
c) Do not allow dolly wheels or trucks to run over
cables.
d) Keep cable clean by following maintenance
instructions.
e) Use only clean, rust-free electrode. The Lincoln
electrodes have proper surface lubrication.
f) Replace contact tip when the arc starts to become
unstable or the contact tip end is fused or
deformed.
g) Do not use excessive wire spindle brake settings.
h) Use proper drive rolls, wire guides and drive roll
pressure settings.
Periodic Maintenance
Wire Drive Motor and Gearbox
Every year inspect the gearbox and coat the gear
teeth with grease. Do not use graphite grease.
Gun and Cable Maintenance
See appropriate Operator's Manual.
Procedure for Removing Feedplate from
Wire Feeder
1. Using a 3/16" Hex Key Wrench remove the two
screws that secure the Feedplate to the Interface
Plate. These screws are located just below and to
the right and left of the lower drive gears.
2. Disconnect the Electrode Lead from the Feedplate.
3. Swing the rear of the Feedplate out towards the
front of the machine which will allow it to be pulled
back and out of the machine.
4. Remove the gas hose and disconnect the gun
leads.
POWER FEED 11
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Troubleshooting
